The Aloha Cabled Observatory (ACO) is up and running.

The University of Hawaii's ALOHA Cabled Observatory is located 100 km
north of the island of Oahu, Hawaii (22 45'N, 158W) in the North
Pacific Ocean. It provides real-time oceanographic observations from a
depth of about 4,800 m via a submarine fiber optic cable that comes
ashore at Makaha on Oahu. In addition to ocean sounds, continuous
observations of temperature, salinity, and ocean currents are obtained
and shared with the oceanographic community and the general public.

Pressure time-series obtained with a Paroscientific Inc. (410K-101) SN 90591 located in the Hydrophone Experiment module.

[Click on the thumbnail to enlarge the figure]

"Latest pressure residuals time-series from the Paroscientific Inc. SN
90591, after removing the barotropic tides estimated from the TPXO 7.2
model, and the mean pressure at the observatory (mean pressure from
August 1 to 14, 2011).

Picture taken with the Axis 214 PTZ video camera at 1.5 m from
the bottom. The camera is mounted on a tripod and connected to the Observatory.

Includes graphic display of frequency spectral decomposition (increasing frequency to the right),
with bright colors showing greater energy. Newest spectra appear at top of image and oldest disappear at the bottom.